Strange mail , from and to is same id

Just now I received an email in my inbox (filtered), subject was about stock market crash and weekly report. Curiously, I opened to see the content, it was some irrelevant stock talks. Further when I checked email message source, it also contained another strange conversation by someone about his absence on job due to mental illness.

Then I checked sender, it was ME, I mean my email was sent through my email id to me , so senders and receiver email id was same. Now, I cannot discard the mails by considering junk mail as sender contains my own email id.